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How many grams of sodium lactate (NaC3H5O3) should be added to 1.00 L of 0.260 M lactic acid (HC3H5O3) to form a buffer solution with pH 2.90? Assume that no volume change occurs when the NaC3H5O3 is added.
What is the maximum amount of Cl2 that can be produced by this reaction. Calculate the amount of excess reactant.
What is the ph of the buffer that results when 12.0 g of NaH2PO4 and 8.00 g of Na2HPO4 are diluted with water to a volume of 0.50 L? ( ka of H2PO4 = 6.2 X10-8, the molar masses of NaH2PO4 and Na2HPO4 are 120.0 g/mol and 142.0 mol respectively)
Calculate the percent manganese in the sample as Mn3O4 (only part or none of the manganese may exist in this form, but we can make the calculations on the assumption that it does)
its clay concentration and the CEC of the clay be able to estimate the draction of CEC due to organic matter in the sample
Determine each of the following. 1) the initial pH? 2)the volume of added acid required to reach the equivalence point
draw a six-carbon-chain portion from syndiotactic polypropylene in which the groups lie on alternating sides of the
calculate how many mL of 0.200 M NaOH (aq) would be needed to react with the malic acid sample from step c.
What is the value of x in the formula for the hydrate? (hint: remember that x represents the ratio of moles of H2O to moles of hydrate compound, and that moles of hydrate compound equals the moles of anhydrous compound)
1. Gasoline (assumed to be 100% octane) is combusted in your car according to the following chemical reaction: 2 C8H18 + 25 O2 -> 16 CO2 + 18 H2O
Sketch a molecule of Pbr3Cl2 in which the chlorines are in axial position position. Sketch another molecules of Pbr3Cl2 in which the chlorines are equatorials positions.
She titrated the acid with a NaOH solution whose exact concentration was unknown. A volume of 18.19 mL of NaOH solution was required to reach the endpoint of the titration. What was the concentration of the NaOH solution in units of M (mol/L)
The single proton that forms the nucleus of the hydrogen atom has a radius of approximately 1.0x10^- 13 cm. The hydrogen atom itself has a radius of approximately 52.9 pm.What fraction of the space within the atom is occupied by the nucleus?
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